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Stelios Katsanevakis

@skatsanevakis.bsky.social
5.4K followers 3.4K following 348 posts

Professor of Marine Ecology @University of the Aegean. Focus: marine conservation, biological invasions, marine biodiversity, and ecological monitoring. #GuardIAS #MarinePlan #GES4SEAS #NemoTools #BioBoost+ #CamBioMed #INSPIRE #MarineEcology #BioInvasions

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Stelios Katsanevakis @skatsanevakis.bsky.social · 02/10/2026
🌍 A super El Niño is becoming a global stress test — from fisheries and food security to wildfire risk and coral reefs. Three recent Nature pieces trace the same story: impacts are accelerating, preparedness matters, and ecosystems need every bit of resilience we can build. #ElNino #ClimateChange 🌐🧪
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Prof Ian Hall @ianhall.bsky.social · 01/10/2026
Swiss glaciers suffer 'disastrous' year of ice loss, threatening water supplies "…in its simplest form, what we see right now is that we took an ice cube out of the fridge and it's just melting in front of our eyes." www.bbc.co.uk/news/article...
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Stelios Katsanevakis @skatsanevakis.bsky.social · 01/10/2026
Μπορείς να φας ένα οικολογικό πρόβλημα; 🐠🍴 Στις 21–22 Οκτωβρίου στη Σαντορίνη, επιστήμη, κοινωνία και γαστρονομία συναντιούνται γύρω από το λεοντόψαρο. Από την Απειλή στην Ευκαιρία. #GuardIAS #Lionfish #Santorini #CPF #InvasiveSpecies #bioinvasions #Biodiversity #FromThreatToOpportunity
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GuardIAS @guardias.bsky.social · 01/10/2026
🌿 Final day of the #GuardIAS Annual Meeting in Pavia Today focused on stakeholder engagement, from the GuardIAS MOOCs to hands-on games and using Bow Tie analysis in #InvasiveAlienSpecies management. A strong finish to three days of learning and collaboration. #IAS #BioInvasions
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GuardIAS @guardias.bsky.social · 01/10/2026
Supporting the next generation of researchers 🌊 The #GuardIAS Early Career Researcher network is building connections, sharing experiences and strengthening collaboration across Horizon Europe marine projects. Read more: guardias.eu/building-net... #InvasiveAlienSpecies #IAS #BioInvasions
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GuardIAS @guardias.bsky.social · 30/09/2026
🌿 Day 2 of the #GuardIAS Annual Meeting in Pavia Today focused on collaboration, communication, and the 11 GuardIAS case studies, with updates on citizen science, eDNA, management approaches, ecological impacts, and wider EU partnerships. #InvasiveAlienSpecies #IAS #BioInvasions #InvasiveSpecies
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GuardIAS @guardias.bsky.social · 30/09/2026
How can new technologies help us detect invasive alien species earlier? At #NEOBIOTA2026, #GuardIAS and @onestop-project.eu presented two emerging tools being tested across Europe, from AI-powered plant detection to automated early alerts. 🌱🔎 Read more: guardias.eu/testing-new-...
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INVASIVESNET @invasivesnet.bsky.social · 29/09/2026
🚨 The fourth webinar INVASIVESNET - GuardIAS will be held on October 13th! Do not miss it! 🚨 📝 Registration is open: buff.ly/EkgJ6gy or by scanning the QR code. 🎬️ Remember that you can rewatch all previous webinars on our YouTube Channel! @guardias.bsky.social
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GuardIAS @guardias.bsky.social · 29/09/2026
Day 1 of the #GuardIAS Annual Meeting in Pavia 🌿 Updates from across the project, from AI, robotics, drones and eDNA to biodiversity mapping and stakeholder engagement. Lots happening across the different stages of IAS management. #InvasiveAlienSpecies #IAS #BioInvasions #InvasiveSpecies
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GuardIAS @guardias.bsky.social · 29/09/2026
From observers to partners. 🌊 At #ICESASC2026, #GuardIAS showcased how local diving teams can move beyond reporting invasive lionfish to actively participating in repeated removals and monitoring. Relationships → Trust → Responsibility #InvasiveAlienSpecies #IAS #BioInvasions #InvasiveSpecies
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Anthony Ricciardi @ecoinvasions.bsky.social · 22/09/2026
Classic example of invasional meltdown. The ants have a mutualism with introduced scale insects. Ant attacks have severely reduced native land crabs, thus altering the forest understory & lowering resistance to invasion by giant African land snails. #bioinvasions scienceofficial.org/nature/yello...
scienceofficial.org
Yellow Crazy Ants Defeat Red Crabs with Chemical Attack on Christmas Island
BBC footage shows yellow crazy ants using formic acid to overpower red crabs, highlighting an invasive species crisis that has devastated Christmas Island's ecosystem for decades.
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CaRe-GR project @care-gr.bsky.social · 24/09/2026
🌊 From monitoring to restoration! 🌿 CaRe-GR is testing approaches to restore Eastern Mediterranean macroalgal forests and support the recovery of these valuable ecosystems. 🌱🐟 🔬 More results soon! #CaReGR #MarineRestoration #MarineForests #Biodiversity
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GuardIAS @guardias.bsky.social · 21/09/2026
Today is the deadline for Abstract submissions for the GuardIAS & @invasivesnet.bsky.social Virtual Conference 2026. Don't miss the opportunity! #GuardIAS #InvasiveAlienSpecies #IAS #BioInvasions #InvasiveSpecies
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CaRe-GR project @care-gr.bsky.social · 21/09/2026
From underwater images to reef health. 🌊 We are exploring how AI-assisted image analysis can help process photoquadrats from the Aegean's rocky #reefs and translate benthic community data into ecological status assessments. #MarineEcology #AI #MarineMonitoring #Reef-EBQI #EcologicalStatus 🌍🌐🧪
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Dr Angel Borja @drangelborja.bsky.social · 18/09/2026
New #GES4SEAS paper on cumulative pressures of alien species in ecosystem services. Proud of this team, lead by @skatsanevakis.bsky.social using CIMPAL+ to assess these pressures #MarineEcology #Research www.frontiersin.org/journals/mar...
frontiersin.org
Frontiers | Mapping cumulative impacts of invasive alien species on ecosystem services
Marine invasive alien species (IAS) play a transformative role in ecosystems, driving ecological changes and affecting ecosystem services (ES) and socio-econ...
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INVASIVESNET @invasivesnet.bsky.social · 16/09/2026
Get to know our keynote speaker! Prof. Steven Loiselle will present FreshWater Watch, a global citizen science initiative coordinated by Earthwatch Europe. Don't miss the 2nd GuardIAS Virtual Conference! It's FREE, and abstract submission is open until 21st September 👇️ @guardias.bsky.social
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GuardIAS @guardias.bsky.social · 15/09/2026
🔔 The deadline to submit your abstract for the GuardIAS & @invasivesnet.bsky.social Virtual Conference 2026 has been extended to 21 September 🔔 More info: guardias.eu/welcome-to-t... #GuardIAS #InvasiveAlienSpecies #IAS #BioInvasions #InvasiveSpecies
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Stelios Katsanevakis @skatsanevakis.bsky.social · 11/09/2026
⏰ Only 3 days left! Submit your abstract for the 2nd #GuardIAS & #INVASIVESNET Virtual Conference (19–20 Nov): #eDNA, #AI, #CitizenScience & smarter IAS monitoring. 🌍 Free online event. Deadline: 14 Sept. guardias.eu/guardias-inv... @invasivesnet.bsky.social #bioinvasions #invasivespecies
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CaRe-GR project @care-gr.bsky.social · 10/09/2026
🐟 A remarkable find from #CaRe-GR! During our surveys in Kefalonia, we recorded Sargocentron rubrum—the northernmost known record of this alien species in the Mediterranean. 🌊 Pictured alongside native Apogon imberbis. #CaReGR #AlienSpecies #MarineBiodiversity
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LifeWatch ERIC @lifewatcheric.bsky.social · 28/08/2026
You can watch the full documentary here 👉 bit.ly/4zIXQtM Or read more about our participation in the #ECSA61 Conference, organised by @elsevierconnect.bsky.social and #ECSA 👉 bit.ly/4gmTwZz
bit.ly
Tides of Balance | Documentary | LifeWatching WebTV
"Tides of Balance", the documentary by Marine SABRES, following scientists and coastal communities across Europe as they work to understand and respond to the forces reshaping marine ecosystems today.
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Dr Angel Borja @drangelborja.bsky.social · 31/08/2026
after a journey of 4 years, our #GES4SEAS project comes to an end. This has been a rewarding time, plenty of good science and friends. Its legacy on marine status and ecosystem-based management will last for years. #MarineEcology #Research More info: www.ges4seas.eu
ges4seas.eu
Homepage - GES4SEAS
GES4SEAS Project aims to inform and guide marine governance in minimizing human pressures and their impacts on marine biodiversity and ecosystem functioning, while maintaining the sustainable delivery...
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Stelios Katsanevakis @skatsanevakis.bsky.social · 03/09/2026
Join the 2nd #GuardIAS & #INVASIVESNET Virtual Conference, 19–20 Nov! Focus: cost-efficient detection & monitoring of invasive alien species, from #eDNA and #AI to #CitizenScience. Abstracts due 14 Sept. guardias.eu/welcome-to-t... #BioInvasions #InvasiveSpecies #biodiversity #AquaticEcology
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Dr Angel Borja @drangelborja.bsky.social · 27/08/2026
Last day of #ECSA61 conference, with an exciting day on science-policy day, to discuss how to better use outputs for marine management #marineecology #research
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Society for the Study of Marine Bioinvasions @marinebioinvasions.bsky.social · 07/08/2026
Meet the team behind ICMB 2027 Our dedicated team is working to deliver a memorable conference - from securing inspiring keynotes to planning exciting field trips and every detail in between. We can't wait to welcome you to Cape Town! #bioinvasions #AlienSpecies #CapeTown #SouthAfrica #ICMB
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Stelios Katsanevakis @skatsanevakis.bsky.social · 21/08/2026
🦈 New paper! We compiled 5,596 records of #sharks, #rays & #chimaeras in Greek seas, confirming 62 species. The dataset provides a new baseline for #MarineConservation and #SpatialPlanning. doi.org/10.3390/fish... #MarineEcology #Mediterranean #Greece #Chondrichthyans 🧪🌍🌐
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Stelios Katsanevakis @skatsanevakis.bsky.social · 21/08/2026
Can you spot an invader before it becomes a problem? 🌊 Early detection is crucial for protecting aquatic ecosystems. Discover how scientists detect and monitor invasive alien species in the #GuardIAS #MassiveOpenOlineCourse 2: guardias.eu/mooc-2/ #InvasiveSpecies #BioInvasions #Biodiversity 🧪🌍🌐
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Stelios Katsanevakis @skatsanevakis.bsky.social · 17/08/2026
#CO₂ may be changing more than our climate—it may be changing us. A striking study finds rising atmospheric CO₂ parallels shifts in human blood chemistry, including ↑ bicarbonate and ↓ calcium & phosphorus. A worrying signal? www.sciencedaily.com/releases/202... 🧪 #ClimateChange #HumanHealth
sciencedaily.com
Scientists detect a surprising shift in human blood as atmospheric CO2 rises
Rising carbon dioxide in the atmosphere may be leaving a measurable imprint inside the human body. Researchers analyzing more than two decades of U.S. health data found that blood bicarbonate levels h...
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Nicholas D Carter @nicholasdcarter.bsky.social · 17/08/2026
"Future food security and public health will depend on feeding the world nutritious foods in a sustainable and ethical way while staying within ecological limits. Alternative proteins provide a practical path forward." Solid recent narrative review: doi.org/10.1042/bio_...
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GuardIAS @guardias.bsky.social · 17/08/2026
Tracking pink salmon in Northern Norway. 🐟 Using eDNA, blowfly iDNA, and bow-tie analysis to map their impact on the Arctic tundra, see how we're scaling up detection of 'zombie' salmon. 🔗 guardias.eu/case-study-6... #IAS #InvasiveSpecies #BioInvasions #InvasiveAlienSpecies
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Greenpeace International 🌍 @greenpeace.org · 13/08/2026
🚨 Huge oil spill from a grounded tanker off the coast of Oman is not only threatening a nearby island and marine nature reserve but has now also reached beaches on the country’s mainland. Greenpeace MENA warns of severe consequences for coastal habitats home to the rare Arabian Sea humpback whale.
reuters.com
Huge oil slick hitting Oman's shoreline as agencies warn of disaster
A vast oil spill from a leaking tanker has started to ​hit Oman's coastline, its environment agency confirmed on Wednesday, in what threatens to become one of the world’s worst in years after spreadin...
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Stelios Katsanevakis @skatsanevakis.bsky.social · 13/08/2026
🌊🔥 The oceans just experienced their hottest July on record. Rising temperatures mean more #MarineHeatwaves, shifting species and mounting pressure on marine #biodiversity. The ocean is sending a clear warning. 🔗 e360.yale.edu/digest/hotte... 🧪🌍🌐 #ClimateChange #MarineEcology
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Dr Angel Borja @drangelborja.bsky.social · 10/08/2026
Just in two weeks from now we will meet at the exciting #ECSA61 conference. You can still register and present a poster, joining to +500 delegates already registered! See you in Brussels! www.estuarinecoastalconference.com #MarineEcology #Research #SciencePolicy
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CaRe-GR project @care-gr.bsky.social · 10/08/2026
🌊🛰️ Mapping Greece’s shallow reefs from space! CaRe-GR combines Sentinel-2 imagery, Google Earth Engine, machine learning & underwater surveys to map reefs at 10-m resolution—building a new spatial baseline for research and conservation. 🇬🇷🗺️ #CaReGR #RemoteSensing #MarineScience
Sentinel-2 satellite image depicting Eastern Limnos Island.
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Stelios Katsanevakis @skatsanevakis.bsky.social · 10/08/2026
🚨 Europe’s seas can’t wait for more promises. The #EEA message is clear: marine ecosystems are in crisis. Europe knows the problems—and has the policies. What’s missing is decisive implementation. Time to turn commitments into action. 🌊 #MarineConservation #EU 🧪🌍🌐 www.wwf.eu?21173591/EEA...
wwf.eu
EEA rings alarm bell over Europe’s seas; urgent action needed
A new report presented by the European Environment Agency (EEA) confirms the dire state of Europe’s seas, which are at the frontline of a growing triple crisis of biodiversity loss, climate change and
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Dr Angel Borja @drangelborja.bsky.social · 04/08/2026
Invitation to Sign: World Scientists' Warning to Humanity: A Third Notice- now 35 years after the first warning. I have just signed #MarineEcology #Research #ClimateChange Use this short form: forms.gle/BAfifGWesmoY...
forms.gle
Endorse the World Scientists’ Warning to Humanity: A Third Notice
Scientists are invited to endorse the article World Scientists’ Warning to Humanity: A Third Notice. The full paper can be read in roughly eight minutes and the summary can be read in one minute. Tog...
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Stelios Katsanevakis @skatsanevakis.bsky.social · 09/08/2026
🌊 New paper in Functional Ecology: #ClimateChange is projected to favour smaller, shorter-lived, earlier-maturing and faster-growing reef #fish in the NE #Mediterranean, with increasing functional homogenization. doi.org/10.1111/1365... #MarineEcology #traits 🧪🌐🌍
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Stelios Katsanevakis @skatsanevakis.bsky.social · 09/08/2026
🔥 #Mediterranean Sea Surface Temperature keeps rising! 🧪 #MarineEcology #ClimateChange
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Zeke Hausfather @zekehausfather.com · 05/08/2026
The rise in Niño 3.4 region sea surface temperatures over the past few weeks has been nothing short of astonishing. We are now hotter than any days during the 1997/1998 super El Niño event, and we are still many months from the peak.
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GuardIAS @guardias.bsky.social · 05/08/2026
🔔 Registration is open for the second #GuardIAS Virtual Conference, hosted in collaboration with @invasivesnet.bsky.social 🔔 For more details on the programme, key dates, and submissions, visit: guardias.eu/welcome-to-t... #IAS #InvasiveSpecies #BioInvasions #InvasiveAlienSpecies
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Zeke Hausfather @zekehausfather.com · 02/08/2026
I'm not sure folks have realized just how crazy the second half of 2026 and 2027 will be for global temperatures – on the back of a record-smashing El Niño event. Here is my latest estimate of where both years will end up compared to global temperatures since 1850.
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Stelios Katsanevakis @skatsanevakis.bsky.social · 01/08/2026
🌊 New paper out! Our Pan-Mediterranean larval collectors network reveals the ongoing spread of the invasive pearl oyster Pinctada radiata and shows how larval collectors can detect invasions years before field observations. doi.org/10.1016/j.ma... #InvasiveSpecies #MarineEcology #bioinvasions
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CaRe-GR project @care-gr.bsky.social · 30/07/2026
🌊 A splash of red from the Gulf of Argostoli, Kefalonia! During #CaRe-GR surveys we recorded beautiful #Axinella sponges—and even a Mediterranean umbrella snail (Umbraculum umbraculum) nestled among them. Hidden biodiversity beneath the surface! 🇬🇷🪸 #UnderwaterPhotography #MarineEcology #reefs
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Dr Angel Borja @drangelborja.bsky.social · 28/07/2026
Today is #WorldNatureConversationDay !! In #GES4SEAS we contribute by developing tools to assess the status of the #ocean, such as Tikta, allowing managers to take the best decisions to protect, conserve and restore the seas #MarineEcology #Research youtu.be/POx9iXz1ufo?...
youtu.be
Introducing Tikta - a GES4SEAS software
YouTube video by GES4SEAS
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INVASIVESNET @invasivesnet.bsky.social · 07/07/2026
Have you registered yet? 👇
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CaRe-GR project @care-gr.bsky.social · 28/07/2026
🌊 CaRe-GR fieldwork continues! Our latest surveys explored marine caves in Chalkidiki. One more step towards Greece's first national marine cave assessment! 🇬🇷🪸 #CaReGR #MarineCaves #MarineScience @vgerovasileiou.bsky.social
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GuardIAS @guardias.bsky.social · 27/07/2026
Data gathering that took 1–2 weeks now takes ~1 hour with the new multi-agent AI tool built by Samuel Vander Velpen (@vicuniwgtn.bsky.social) for #GuardIAS to accelerate research on #InvasiveAlienSpecies. Demo: gias-tool.streamlit.app GitHub: github.com/Nelson-AI-Labs/GIAS.git
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Dr Angel Borja @drangelborja.bsky.social · 20/07/2026
Is it possible to synthesize 7 policy briefs into a one-page summary? Yes, for #GES4SEAS project nothing is impossible, and, if you are a marine manager, you can learn many things at a glance. Donwload and share freely: zenodo.org/records/2140... #MarineEcology #Research #ClimateChange
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Dr Angel Borja @drangelborja.bsky.social · 21/07/2026
A new #GES4SEAS paper, from past year summer school has been published. It deals with #MachineLearning #eDNA and #CitizenScience for marine monitoring #MarineEcology #Research www.frontiersin.org/articles/10....
frontiersin.org
Frontiers | Machine learning, eDNA and citizen science in monitoring and assessing biodiversity and invasive alien species at sea
This research outlines the integration of machine learning, citizen science, environmental DNA (eDNA), and other emerging technologies to enhance marine biod...
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OneSTOP @onestop-project.eu · 23/07/2026
➡️You can still join for GuardIAS's 2️⃣Virtual Conference, hosted in collaboration with @invasivesnet.bsky.social 📅19-20 November 2026 👉Register: docs.google.com/forms/d/e/1F...
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The Ricciardians @ricciardilab.bsky.social · 18/07/2026
Atlantic blue crabs are proliferating in Italian lagoons under climate change. “They completely destroy clam farms. They completely eat all the seeds, even larger Manila clams,” said an ecologist. “They completely disrupt the ecological network.” #bioinvasions www.ctvnews.ca/climate-and-...
ctvnews.ca
An American blue crab took over Italian lagoons. Now fishers are looking for new careers
he crustacean — a prized seafood in Maryland, elsewhere along the US eastern seaboard and the Gulf of Mexico — had overrun the Po Delta, devouring the cultural staple that once provided a livelihood f...
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